condition	mean	min	max
4 h after light	8.493326666666666	3.71486	13.751
8 h after light	6.05854	1.3387	10.7033
12 h after light	7.83101	4.21717	13.1206
4 h after dark	11.795313333333333	7.72734	15.2993
8 h after dark	9.610786666666666	6.81036	11.1987
12 h after dark	8.64299	5.43296	12.5335